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There are two piles of coal. The first pile carries three-quarters of it, the second pile carries two-thirds of it, and the rest of the two piles together is three-quarters of the same pile If the two piles originally weighed 105 tons, how many tons did they each weigh?
From the meaning of the title
1 / 3 of the second stack is equivalent to 3 / 4-1 / 4 = 1 / 2 of the first stack
Then the first pile: the second pile = 2:3
The first batch: 105 × 2 / 5 = 42 (tons)
The second batch: 105 × 3 / 5 = 63 (T)
The first pile of coal is 3 / 5 of 1 ton, and the second pile is 1 / 3 of 5 tons. Which pile of coal is more? Why
Write why, in words
1x3 / 5 = 3 / 5 (ton)
5x1 / 3 = 5 / 3 (ton)
3/5＜5/3
So the second pile is more
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